Special lubricating grease composition for polyether type double-mass flywheel and preparation method of special lubricating grease composition

By adopting polyether type dual-mass flywheel special grease, combined with composite lithium thickened polyether base oil and a variety of additives, the shortcomings of greases in the prior art in terms of mechanical stability, antioxidant ability and long service life are solved, and efficient and stable lubricating performance is achieved.

CN119709293APending Publication Date: 2025-03-28AN SHAN HAI HUA YOU ZHI HUA XUE YOU XIAN GONG SI +1
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Patent Information

Application Number
CN202411962811.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

In the prior art, the grease for dual-mass flywheels has shortcomings in mechanical stability, antioxidant capacity and long service life, and it is difficult to meet high performance needs.

Method used

A special lubricant for polyether type dual-mass flywheel is used to form a grease with an oil-soluble polyether base oil with a viscosity index of no less than 190 by combining 12-hydroxystearic acid, azelaic acid and sebacic acid, antioxidants, metal deactivators, antiwear agents, extreme pressure agents and anti-rust agents to form a grease with excellent high and low temperature performance, mechanical stability and anti-oxidation ability.

Benefits of technology

The long-term stability of grease in high and low temperature environments is achieved, the mechanical stability and anti-oxidation capacity are significantly improved, the service life is extended, and the oil separation amount and friction coefficient are reduced.

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Abstract

The invention relates to special lubricating grease for a polyether type dual-mass flywheel. The special lubricating grease comprises the following components in parts by weight: 75.0-82.0 parts of polyether base oil; 7.0 to 9.0 parts of 12-hydroxy stearic acid; 2.0 to 4.0 parts of lithium hydroxide monohydrate; 2.0 to 5.0 parts of binary acid; 1.0 to 3.0 parts of an antioxidant; 0.2 to 0.5 part of a metal deactivator; 1.0 to 3.0 parts of an anti-wear agent; 1.5 to 3.0 parts of an extreme pressure agent; and 0.3 to 0.6 part of an antirust agent. The lubricating grease provided by the invention has excellent high and low temperature characteristics, mechanical stability, oxidation stability, colloid stability, water resistance, rust resistance and good adhesion.
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